Tidal power is taken from the Earths oceanic tides celestial bodies as well as Earths centrifugal forces that exert tidal force of periodic variations and gravitational attractions. These forces create corresponding motions or currents in the words oceans.
Due to the strong attraction to the oceans, bulges in the water levels are created causing temporary increase in sea levels. When the sea levels rise, water from the middle of the ocean is forced to move towards the shoreline creating a tide.
This occurrence is created in an unfailing manner due to a consistent pattern of the Moons orbit around the Earth. And so, tidal power is practically inexhaustible and classified as a renewably energy resource.
Aqua Dynamo is an incredibly powerful tidal turbine that uses a dynamic design to harness the kinetic energy found in moving bodies of water. These turbines generates enough clean energy to power over 3 million homes while taking up only 200 acres or less of water space.
The patent pending blades of the turbine was designed to protect marine life. The vertical-axis blades provide a safer marine environment compared to the blades in existing tidal turbines.
The world is working together to decrease our dependence on fossil fuels and to develop environmentally sustainable energy sources. Aqua Dynamo can harness an environmentally sustainable energy source.
Aqua is currently seeking investors that share its vision of clean and safe energy.Downlaod PDF
Tidal turbines work in a similar manner to wind turbines; the difference is that substantial energy can be generated from tidal turbines in the same period of time. Tidal turbines harness energy from tidal streams that are caused by strong horizontal tidal currents.
The energy is generated as the tidal current flows through the blades of the tidal stream generators. This energy is collected and transported through an underwater cable. These underwater tidal turbines produce no emissions or noise and have a minimal impact on the environment.
30 meters sweep area and the aqua-dynamic blade
design reduces drag which makes this turbine more efficient.
The World Bank, an international institution views hydropower as a means for economic development without adding substantial amounts of carbon to the atmosphere.
The Tidal Stream Turbines works much like an “underwater windmill”. It is designed to incorporate a pod consisting of four blades that harness the power of tidal currents to generate electricity using axial flow turbines that drive generators via gearboxes.
Aqua’s Tidal Stream Turbines generate power from sea currents using working principles similar to the wind generator technology. However, there are several ways Tidal Stream Turbines are unique, more efficient and more cost-effective than the wind turbine and other Tidal Turbines currently in use.
Tidal Stream Turbines utilizes water that is 832 times denser compared to wind. This allows a much smaller system to be accommodated. It utilizes tidal energy generators placed underwater with tidal movements to capture kinetic energy via the surging and ebbing of water currents to generate electricity. The tapping of kinetic energy is dictated by the amount of the cross-section of flow the system is capable of addressing.
With Tidal Stream Turbine, the rotor swept area dictates the energy capture capability; it has a large rotor-sweep area of 30 meters. This way, it can develop its rated power of 987.84 kW within a flow of 5. m/s.
Stacking: The attachable and removable pods allows for easy attachments of pods on top of each other, as such, the process of connecting turbines is less complex.
This unique aquadynamic blade shape, including its blade design, characterized by mini hydrofoils, maximizes the efficiency of this invention; it does not affect marine life, it makes the rotation of the turbine more efficient, and maximizes the efficiency of the spinning blades.
Its high gear ratio supported by multiple-stage planetary gearbox ensures efficient power is generated based on the tidal kinetic energy.
The staking of pods enables this design to produce multiple times more electrical energy than the current coal power plants and wind turbines that are currently used on land or under water.
The Aqua Dynamo can be stacked vertically to maximize the number of turbines in a set area of ocean space.
The pre-constructed turbines are attached to a stabilizing structure located on the ocean floor. This weighted structure is not secured to the ocean floor so its ecosystem impact is minimized.
The tidal currents rotate the turbine blades which powers the generator that then produces energy. This energy output will vary regularly with the tides.
An underwater cable will transport the electricity to the nearest onshore station.
The onshore station will be able to insert the generated electricity directly into the power grid.
R= Number of Teeth in Ring gear
S= Number of Teeth in Sun gear
Ty=Turns of the planetary gear carrier Tr= Turns of Ring gear
Ts= Turns of Sun gear
The Planetary Gear Set above design to have a stationary Ring gear.
So the formula will be:
Tr= Zero due to Ring gear was stationary
(R + S)Ty = (R x Tr) + (Ts x S)
(R + S)Ty = (Ts x S)
The input will be the Planetary carrier and The output will be the Sun gear
Gear ratio= Output gear/Input gear
Gear ratio= Ts/Ty = (R+S)/S
In the 1st to 3rd planetary set, the number of teeth of the Sun, Planetary and Ring gear are the same.
R=75 S=25 P=(R+S)/2 P= 50
Gear ratio= Ts/Ty = (R+S)/S
Ts/Ty = (R+S)/S
Gear ratio = 4 (1st to 3rd stage planetary set)
Gear ratio= Output gear/Input gear
For the 4th stage: Spur gear combination
Spur input gear = 25 teeth
Spur output gear = 75 teeth
Gear ratio = Output gear/Input gear = 75/25
Gear ratio = 3
Therefore, the overall gear ratio of 3 stage planetary gear and spur gear will be:
Over all gear ratio=(1st stage gear ratio)(2nd stage gear ratio)(3rd stage gear ratio)(4th stage gear ratio) = (4)(4)(4)(3)
Combined gear ratio = 192
Overall gear ratio = 192:1
1 rotation of the rotor will create 192 rotations on the gear of the generator
2.5 MW tidal turbine with aquadynamic vertical axis blades offer a unique single rotation during the ebb and flow of tidal currents. This one direction action is cost effective as it eliminates the need for a dual turbine system.
This patent pending turbine also includes designs of mini hydrofoils that change the motion of the water as it passes through the blades. This causes an increase in energy output as drag on the blades are significantly reduced.
|NAME||TidalStream SST||Free Flow System Turbine||MTC Turbine||OpenHydro AK 1000||Atlantis Resources AR 1000|
|POWER||1 MW||33 kW||1.2 MW||1 MW||1 MW|